<template>
  <view v-if="goods_info.goods_name" class="goods-detail">
    <!-- 轮播图区域 -->
     <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular>
       <swiper-item v-for="(info,i1) in goods_info.pics" :key="i1">
         <image :src="info.pics_big" mode="" @click="preview(i1)"></image>
       </swiper-item>
     </swiper>
     
     <!-- 商品信息区域 -->
     <view class="goods-info-box">
       <!-- 商品价格区域 -->
       <view class="goods-info-price">
         ￥{{goods_info.goods_price}}
       </view>
       <!-- 商品详细信息 -->
       <view class="goods-info-body">
         <!-- 商品文字 -->
         <view class="good-name">
            {{goods_info.goods_name}}
         </view>
         <!-- 商品图标 -->
         <view class="favi">
          <uni-icons type="star" size="20"></uni-icons>
          <text>收藏</text>
         </view>
       </view>
       <!-- 运费 -->
       <view class="yf">
          快递:免运费
       </view>
     </view>
      <!-- 富文本 -->
     <rich-text :nodes="goods_info.goods_introduce"></rich-text>
      <!-- 购买区域 -->
     <uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
  </view>
</template>

<script>
  import {mapState,mapGetters} from 'vuex' 
  export default {
    computed:{
      ...mapState({
        carts:state=>state.cart.carts
      }),
      ...mapGetters(['total'])
    },
    watch:{
      total:{
       // let findResult =  this.options.find(x => x.text === '购物车')
       //   if(findResult){
       //      findResult.info = newVal
       //   }
       handler(newVal){
          this.options[2].info = newVal
       },
      
        immediate:true // watch侦听操作内的函数会立刻被执行
      }
    },
    data() {
      return {
         //商品详情数据
          goods_info:{},
           options: [{
          			icon: 'headphones',
          			text: '客服'
          		}, {
          			icon: 'shop',
          			text: '店铺',
          			info: 0,
          			infoBackgroundColor:'#007aff',
          			infoColor:"red"
          		}, {
          			icon: 'cart',
          			text: '购物车',
          			info: 0
          		}],
          	    buttonGroup: [{
          	      text: '加入购物车',
          	      backgroundColor: '#ff0000',
          	      color: '#fff'
          	    },
          	    {
          	      text: '立即购买',
          	      backgroundColor: '#ffa200',
          	      color: '#fff'
          	    }
          	    ]
      };
    },
    onLoad(options){
        // 获取商品 Id
          const goods_id = options.goods_id
          // 调用请求商品详情数据的方法
          this.getGoodsDetail(goods_id)
    },
    methods:{
      async getGoodsDetail(goods_id){
         const {data:res} = await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
         if(res.meta.status !== 200) return uni.$showMsg()
      res.message.goods_introduce =  res.message.goods_introduce.replace(/<img /g, '<img style="display:block;" ').replace(/webp /g, 'jpg')
      
          this.goods_info = res.message
      },
      preview(i){
        uni.previewImage({
          current:i,
          urls: this.goods_info.pics.map(x=>x.pics_big)
        })
      },
      onClick(e){
        if(e.content.text === '购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      buttonClick(e){
        if(e.content.text === '加入购物车'){
          const {goods_id,goods_name,goods_price,goods_count,goods_small_logo,goods_state} = this.goods_info
          const goods = {
            goods_id:goods_id,
            goods_name:goods_name,
             goods_count:1,
              goods_price:goods_price,
             goods_small_logo:goods_small_logo,
              goods_state:goods_state
          }
           this.$store.commit('addToCart',goods)
        }
        
      }
    }
  }
</script>

<style lang="scss">
swiper{
  height: 750rpx;
  image{
    width: 100%;
    height: 100%;
  }
  }
  
  
  .goods-info-box{
    padding: 10px ;
    padding-right: 0;
    .goods-info-price{
      color: #c00000;
      font-size: 18px;
      margin: 10px 0;
    }
    .goods-info-body{
      display: flex;
      justify-content: space-between;
      .good-name{
        font-size: 13px;
        margin-right: 10px;
      }
      .favi{
        display: flex;
        width: 80px;
        font-size: 12px;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        border-left: 1px solid #fff;
        color: grey;
        }
    }
    .yf{
       font-size: 12px;
       color: grey;
       margin: 10px 0;
    }
}

 .uni-goods-nav{
    position: fixed;
    width: 100%;
    bottom: 0;
    z-index: 999;
  }
  .goods-detail{
    padding-bottom: 50px;
  }
  
</style>
